The tax would fund a state police database of ammunition sold in Pennsylvania.

The planned legislation would require ammunition manufacturers to encode ammunition provided for retail sale in Pennsylvania, and to provide ammunition serial numbers to the Pennsylvania State Police for the ammunition database. The plan was revealed in a joint memo to the state legislature by Guzman and Kinsey.

"Since 2015, only 21% of the nearly 8,500 shootings that Philadelphia has endured have resulted in an arrest or conviction," the memo said.

"Far too often, all that is left for the police to find is a victim and a bullet. By making the bullet a more useable piece of evidence, independent from the associated firearm, we can give our law enforcement officers the tools that they need to solve more of these heinous crimes."